Performance Study of the Association TCM-UGM/STBC to Reduce Transmission Errors of JPEG Images
نویسندگان
چکیده
The purpose of this work is to associate the channel encoder called ‘trellis-coded modulation with Ungerboeck-Gray mapping’ (TCM-UGM) to ‘space-time block code’ (STBC), in order to study its performance to correct the transmission errors of a JPEG image. The performance of the proposed scheme is evaluated in senses of bit error rate (BER), frame error rate (FER) and peak signal-to-noise ratio (PSNR) of the reconstructed image. Compared to the association TCM/STBC for a throughput of 2 bits/s/Hz, TCM-UGM/STBC permits to obtain a PSNR gain up to 2 dB.
منابع مشابه
Bandwidth and Efficient Encoding Scheme Combining Tcm-ugm to Stbc
In this paper, a bandwidth efficient encoding scheme is proposed. It combines the modified version of trellis coded-modulation (called trellis coded-modulation with Ungerboeck-Gray mapping, TCM-UGM) to space-time block code (STBC). The performance of this encoding scheme is investigated over memoryless Rayleigh fading (MRF) channel for throughput 2 bits/s/Hz. The simulation result, using 2/3 ra...
متن کاملA Novel Temporal-Frequency Domain Error Concealment Method for Motion Jpeg
Motion-JPEG is a common video format for compression of motion images with highquality using JPEG standard for each frame of the video. During transmission through a noisychannel some blocks of data are lost or corrupted, and the quality of decompression frames decreased.In this paper, for reconstruction of these blocks, several temporal-domain, spatial-domain, andfrequency-domain error conceal...
متن کاملارائه روشی برای پیشپردازش تصویر جهت بهبود عملکرد JPEG
A lot of researchs have been performed in image compression and different methods have been proposed. Each of the existing methods presents different compression rates on various images. By identifing the effective parameters in a compression algorithm and strengthen them in the preprocessing stage, the compression rate of the algorithm can be improved. JPEG is one of the successful compression...
متن کاملنهانکاوی در تصاویر JPEG بر مبنای دستهبندی ویژگیهای آماری و تصمیمگیری دو مرحلهای
Abstract In this paper, we propose a comprehensive steganalysis scheme for JPEG images. In this method, the optimized features which can interpret high distinction between cover and stego images are extracted from images. These features have been selected after a careful study on modifications caused by different steganography algorithms on statistical characteristics of images. Furthermore, us...
متن کاملContent-Based Image Unequal Error Protection Strategies for an Open Loop MIMO System
The paper deals with strategies for optimizing the transmission of JPEG2000 coded images over a MIMO quasi-static Rayleigh fading channel, by exploiting different available MIMO STBC (Space Time Block Codes), as well as the image content to be transmitted. The aim is to propose a link adaptation scheme based on the variable radio channel’s conditions, by establishing an UEP (Unequal Error Prote...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IJCNS
دوره 4 شماره
صفحات -
تاریخ انتشار 2011